
TRENCH DRAIN & CHANNEL DRAIN SYSTEMS
Trench drains (channel drains) are linear drainage systems that collect water along their entire length — ideal for garage entrances, driveway transitions, loading docks, commercial kitchens, pool decks, and any location where surface water needs to be intercepted along a line. We install precast polymer concrete channels, poured-in-place concrete channels, and prefabricated trench drain systems with appropriate grate covers (steel, cast iron, or polymer).
Starting at $30 per linear ft
intercepts surface water along the entire drain length.
steel, cast iron, polymer, and decorative grates for different load classes and aesthetics.
systems for garages, driveways, loading docks, commercial kitchens, and pool decks.
Trench drains intercept surface water along their entire length, making them the ideal solution for garage entrances, driveway transitions, loading docks, and commercial floors. We install precast polymer concrete channels, poured-in-place concrete channels, and prefabricated systems with grate covers rated for the expected traffic loads.
Rainwater or snowmelt runs down the driveway into your garage — a trench drain at the garage door threshold intercepts it.
Trench excavation to required depth and grade with connection to outlet point.
Set channel sections to grade with proper fall toward the outlet.
Pour concrete around channels, set grate frames, and verify drainage flow.
Polymer/plastic grates for pedestrian-only areas, galvanized steel for residential vehicle traffic, cast iron for commercial vehicle traffic, and stainless steel for food service/sanitary applications. The grate must be rated for the expected load class — residential driveways typically need Class A or B rated grates.
$30 - $75
per linear ft
*Varies by project scope and site conditions.
Leave Concrete to the Pros
When you choose Legacy General Services for your concrete project in the NW Metro, you're choosing a partner committed to quality that lasts.
MN-registered contractor since 2023. Insured and trusted by homeowners across the NW Metro.
No hidden fees or surprise charges. Upfront pricing on every concrete project—big or small, start to finish.
On-time scheduling and reliable project timelines. We show up when we say we will and finish on schedule.
Air-entrained, freeze-thaw resistant concrete built for Minnesota winters. Every pour meets or exceeds code.